linux-omap.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH v5 0/2] PCI: dwc: fix two MSI issues
@ 2020-09-30  1:12 Jisheng Zhang
  2020-09-30  1:12 ` [PATCH v5 1/2] PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled Jisheng Zhang
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Jisheng Zhang @ 2020-09-30  1:12 UTC (permalink / raw)
  To: Kishon Vijay Abraham I, Lorenzo Pieralisi, Rob Herring,
	Bjorn Helgaas, Jingoo Han, Gustavo Pimentel
  Cc: linux-omap, linux-pci, linux-arm-kernel, linux-kernel

Fix two MSI issues. One to skip PCIE_MSI_INTR0* programming if MSI is
disabled, another to use an address in the driver data for MSI address,
to fix the MSI page leakage during suspend/resume.

Since v4:
  - fix pci-dra7xx.c

Since v3:
  - add Acked-by tag
  - change patch2 commit msg to make it clear
  - map the MSI msg with dma_map_single_attrs() for some platforms
    which either has seperate addrs for dma and phy or has mem access
    limitation for the PCIe.

Since v2:
  - add Acked-by tag
  - use an address in the driver data for MSI address. Thank Ard and Rob
    for pointing out this correct direction.
  - Since the MSI page has gone, the leak issue doesn't exist anymore,
    remove unnecessary patches.
  - Remove dw_pcie_free_msi rename and the last patch. They could be
    targeted to next. So will send out patches in a separate series.

Since v1:
  - add proper error handling patches.
  - solve the msi page leakage by moving dw_pcie_msi_init() from each
    users to designware host


Jisheng Zhang (2):
  PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled
  PCI: dwc: Fix MSI page leakage in suspend/resume

 drivers/pci/controller/dwc/pci-dra7xx.c       | 18 +++++++++-
 .../pci/controller/dwc/pcie-designware-host.c | 34 +++++++++----------
 drivers/pci/controller/dwc/pcie-designware.h  |  2 +-
 3 files changed, 35 insertions(+), 19 deletions(-)

-- 
2.28.0


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2020-10-09  7:11 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-30  1:12 [PATCH v5 0/2] PCI: dwc: fix two MSI issues Jisheng Zhang
2020-09-30  1:12 ` [PATCH v5 1/2] PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled Jisheng Zhang
2020-09-30  1:15 ` [PATCH v5 2/2] PCI: dwc: Fix MSI page leakage in suspend/resume Jisheng Zhang
2020-10-07 17:41   ` Rob Herring
2020-10-08 11:36 ` [PATCH v5 0/2] PCI: dwc: fix two MSI issues Lorenzo Pieralisi
2020-10-09  7:10   ` Jisheng Zhang

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).